253results about How to "Efficient acquisition" patented technology

The invention discloses a method and a system for improving the large data volume query performance and belongs to the technical field of large data volume query. The method comprises A, loading data in a disk database into distributed caches in a cache ID-entity data key value pair mode, and storing the cache ID and key information of the entity data in a cache ID table of a memory database simultaneously; B, querying the cache ID table according to a query request when the query request sent by a client is obtained to selecting an ID set meeting the query request; C, obtaining the entity data from corresponding distributed caches according to the cache ID set and returning the entity data to the client. By means o the system and the method, loads of the disk database can be effectively reduced, and the big data query performance is improved.

Methods and apparatuses for acquiring/providing available channel information using Generic Advertisement Service (GAS) protocol in a wireless local area network (WLAN) are disclosed. AP (Access Point) station has a capability to acquire information for available channels from a database using a specific protocol related to an operation within the White Space (e.g. Access Network Query Protocol (ANQP)). And, non-AP station can retrieve the information for available channels by transmitting a Generic Advertisement Service (GAS) initial request frame to the AP station, wherein the GAS initial request frame comprises an Advertisement Protocol Element whose element ID indicates the specific protocol, and receiving a GAS initial response frame comprising a White Space Map (WSM) the specific protocol. The WSM comprises one or more white space channel units, and each of the white space channel units comprises a channel number field indicating one of the available channels and a power constraint field indicating a maximum allowable power on the indicated channel.

A compressed sensing signal collection method based on filtering includes the following steps: firstly, sensing equipment is used for collecting target signals x (t) in an independent sampling period and carries out digital quantification on the signals in an analog/digit (A/D) mode. Secondly, the dimension of the quantified signals x (i) is reduced. Lastly, the signals with the reduced dimension are reconfigured. The t means the sampling time, and the i means the sequence of the quantified signals. The detailed method of dimension-reduction of the quantified signals is that the quantified signals respond to a difference equation of a filter through finite impulse, and the difference equation is that i= 1, ..., M, wherein h (0), ..., h (L-1) is the coefficients of the filter. The design constructs a following toeplitz measurement array based on a compressed sensing signal collection framework of the filter, and the toeplitz measurement array is that i= 1, ..., M is observed, wherein b1,..., bL are treated as coefficients of the filter. The singular value of a sub-array phi FT is an arithmetic value of a characteristic value of a Gramm array which is that G (phi F, T) = phi ` FT phi FT, all the characteristic values that lambada i belongs to (1- delta K, 1+ delta K), wherein i= 1, ..., T of G (phi F, T) are tested, and the original signals are reconfigured by solving the following l1 optimization problems.

The invention discloses a method for sending an uplink sounding reference signal in a multi-carrier system, and the method is applied in the multi-carrier system and comprises the following steps: determining the time position of sending the uplink sounding reference signal (SRS) on a working carrier; determining the time position of sending the SRS signal on a non-working carrier based on the principle of time division multiple access (TDM) in the multi-carrier; and sending the SRS signal in the determined time position of the working carrier and the time position of the non-working carrier,wherein each time position comprises a sign position or a sub-frame and the like. The invention further discloses a user equipment which comprises a working carrier time position determining unit, a non-working carrier time position determining unit and an SRS signal sending unit. The scheme of the invention can achieve the purpose of sending the SRS signal at a certain bandwidth stipulated by all carriers of the multi-carrier system or the communication protocol within a certain time.

The invention relates to a method of quickly segmenting a moving target in a non-restrictive scene based on a full convolution network, which belongs to the technical field of video object segmentation. The method comprises steps: firstly, framing is carried out on the video, and a result after framing is used for making a Ground Truth set S for a sample image; a full convolution neural network trained through a PASCAL VOC standard library is adopted to predict a target in each frame of the video, a deep feature estimator for an image foreground target is acquired, target maximum intra-class likelihood mapping information in all frames is obtained hereby, and initial prediction on the foreground and the background in the video frames is realized; and then, through a Markov random field, deep feature estimators for the foreground and the background are refined, and thus, segmentation on the video foreground moving target in the non-restrictive scene video can be realized. The information of the moving target can be effectively acquired, high-efficiency and accurate segmentation on the moving target can be realized, and the analysis precision of the video foreground-background information is improved.

The invention relates to a multi-level-point-set characteristic extraction method applicable to ground laser radar point cloud classification. Based on point set characteristics, high-precision classification of four kinds of common ground features including pedestrians, trees, buildings and automobiles and the like in a scene is realized. Firstly, point sets are constructed and a point cloud is re-sampled into a point cloud of different scales and thus point sets which are different in size and provided with layered structures are formed through clustering and characteristics of each point in the point sets are obtained; next, an LDA (Latent Dirichlet Allocation ) method is adopted to synthesizing point-based characteristics of all points in each point set into shape characteristics of the point sets; and at last, based on the shape characteristics of the point set, an Adaboost classifier is adopted to train the point sets of different levels so as to obtain a classification result of the whole point cloud. The multi-level-point-set characteristic extraction method has a higher classification precision and has a classification precision, which is far higher than that of point-based characteristics, Bag-of-Word-based characteristics and characteristics based on probabilistic latent semantic analysis (PLSA), in aspect of pedestrians and vehicles.

The invention provides a method and apparatus for obtaining training data. The method comprises the following steps: receiving original video data; detecting a target object in the original video data by use of a trained first neural network, and automatically marking the detected target object; and based on the automatically marked video data, obtaining the training data used for training a second neural network. According to the method and apparatus for obtaining the training data, provided by the embodiments of the invention, the target object in the original video data is automatically marked by use of the trained neural network, for obtaining the training data used for training a target neural network, such that enormous time spent by manual marking personnel in performing manual marking on the original video data can be saved, the problem of possible omission of the target object due to the manual marking can also be effectively avoided, and high-quality training data is obtained efficiently.

The invention provides an unconventional oil and gas reservoir horizontal well section three-dimensional rock mass mechanical modeling method and device. The method includes the steps of determining an unconventional oil and gas reservoir horizontal well section object region; obtaining three-dimensional earthquake prestack gathered data in the object region; conducting elastic parametric inversion by adopting the three-dimensional earthquake prestack gathered data and obtaining a three-dimensional space elastic parameter data body in the object region, wherein the three-dimensional space elastic parameter data body comprises a rock mass poisson ratio and Young modulus; calculating a rock mass brittleness index according to the rock mass poisson ratio and the Young modulus; establishing a rock mass mechanical parameter model based on three-dimensional grid nodes according to the three-dimensional space elastic parameter data body and the rock mass brittleness index. The unconventional oil and gas reservoir horizontal well section three-dimensional rock mass mechanical modeling method and device can simply, effectively and accurately obtain an unconventional oil and gas reservoir rock mass mechanical model.

The invention provides a building safety monitoring alarm device. A humidity sensor, a temperature sensor, a vibration sensor, a central processor, an image acquisition device, an image processing device, a signal trigger and an alarm device are used to timely monitor a to-be-measured building. When data measured by one of the humidity sensor, the temperature sensor and the vibration sensor exceeds the preset threshold, the central processor controls the signal trigger to emit an image acquisition trigger signal, the image acquisition device collects image information of the to-be-measured building, the image information passes through the image processing device and then the central processor, and the central processor determines whether the to-be-measured building has safety problems ornot through the image information output by the image processing device and triggers the alarm device to send alarm information if yes.

The invention discloses a fusion method of building BIM model and live-action three-dimensional model. The fusion and conversion process mainly comprises model reconstruction, geometric information conversion, model three-dimensional registration and semantic mapping. The fusion method comprises the steps that firstly, a building BIM model is split, and json attribute files and ifc geometric filesof all components are generated; then, intermediate format exchange is carried out, and ifc is converted into obj; obj is converted into glTF, and three-dimensional geometric figure data transmissionis further achieved; then attributes and geometric data are connected, and glTF and json generate b3dm; and finally, a data description file tileset.json are added, and the data description file tileset.json and b3dm are converted into 3DTiles data. According to the method, the semantic attribute characteristics in the BIM original model are reserved while the geometric figures are completely expressed, and the spatial positions of the two models are unified in the same environment, so that an internal and external integrated display effect is achieved.

The invention provides an oil gas prospecting method and system, and the method comprises the steps of: using ground spectrometer to measure ground object spectrum data in study region; using digital camera to collect ground object description data in the study region; collecting ground surface sample data and measuring condition data; using portable GPS to collect measured ground object coordinate data in the study region; according to the ground object spectrum data, ground object description data, ground surface sample data, measuring condition data and measured ground object coordinate data to generate ground object spectrum database in the study region; using satellite or airplane-carried high spectrum imager to collect ground object high spectrum remotely sensed image data in the study region; processing the data in the ground object spectrum database and ground object high spectrum remotely sensed image data to obtain oil gas prospecting target region data.

The invention discloses a method and a device for obtaining a webpage page link address. The method disclosed by the invention comprises the following steps: loading an original webpage page, monitoring whether the original webpage page jumps, triggering a click event for simulating the jump event of the original webpage page, in the event of monitoring that the original webpage page jumps, preventing the original webpage page from jumping, intercepting and capturing page jump requirement of the original webpage page, and reading the link address of a target webpage page, to which the original webpage page jumps, from the page jump requirement. According to the invention, the problem of being poor in efficiency of obtaining the link address of the webpage page is solved.

The invention discloses a device for obtaining a complex scene multi-mode biology characteristic image. The device comprises an active multi-element imaging unit, a logic control platform and a parallel data calculation platform, wherein the logic control platform is connected to an active multi-element imaging unit and the parallel data platform is connected to the logic control platform; the parallel data calculation platform comprises a multi-element sense data processing system, a biologic characteristic scene sensing and modeling system, a multimoding biologic characteristic active sensing system and an advanced imaging algorithm processing system. Besides, the invention also discloses a method for obtaining the complex scene multi-mode biology characteristic image. The method and the device for obtaining the complex scene multi-mode biology characteristic image can perform multimoding recognition on the biologic characteristics of the multiple users under the complex scene conditions, satisfies the requirement for identity recognition in the complex imaging scene, and realizes the effective obtaining of the multimoding biologic characteristics of the iris, the human face and the grait.

The invention relates to the field of internet information processing, in particular to a method and a system for network information extraction. The invention adopts a technical proposal which comprises the steps as follows: S1: information extraction rules are extracted from a rule database; S2: the information extraction rules are used as inquiry conditions for collecting network information and web pages which accord with the information extraction rules are used for establishing a primary database; S3: a user inquiry string is obtained; and S4: a web page which is matched with the inquiry string in the primary database is output. The invention can provide search results with high precision, which is different from traditional search engines and is an extremely effective and accurate information obtaining tool, thus substantially enhancing the obtaining efficiency of business information of people.

The invention provides a voice assisting method and device during communication. The method includes: acquiring communication voices; detecting whether the communication voices contain preset keywords or not; if so, searching for assisting operation manners corresponding to the preset keywords, and executing the corresponding assisting operations. By the method, assistance can be provided during communication according to communication contents, and convenience is brought to users' communication.

The invention relates to an entanglement imaging system based on dual-compression coincidence measurements. The system comprises a laser, a nonlinear crystal, a narrow-band filter, a beam splitter, a first group of imaging lenses, a second group of imaging lenses, a first spatial light modulator, a second spatial light modulator, a first group of light converging lenses, a second group of light converging lenses, a first point detector, a second point detector, a coincidence measurement circuit and an algorithm module. The laser generates pump light, an entanglement photon pair is produced through nonlinear crystal and is divided into a signal light path and an idle light path after passing through the narrow-band filter to be projected onto the first spatial light modulator and the second spatial light modulator respectively; light is modulated, the modulated light is collected onto the first point detector and the second point detector to be converted into electric signals which are input in the coincidence measurement circuit, and a coincidence measurement value is output; and the algorithm module rebuilds spatial correlation coefficient distribution through a compressive sensing algorithm according to a measurement matrix and the measurement value.

The invention discloses a photon fence system for monitoring on security protection of perimeter at night. The system comprises: a pulsing laser, which is used for emitting a laser pulse to carry out illumination on an object; a gated imaging device, which is used for controlling exposure time by a pulse width of a gated pulse; a time schedule controller, which is used for controlling time delay between the gated pulse and the laser pulse; and a computer, which is used for carry out controlling, image processing and displaying on the pulsing laser, the gated imaging device and the time schedule controller. According to the system provided in the invention, a pulsing laser is utilized as a light source and a gated imaging device is employed as a detector; time delay between a gated pulse and a laser pulse is controlled so as to establish a photon fence in space, wherein the photon fence is invisible for human eyes; therefore, when an invading object passed through the photon fence, image information of the invading object is collected and background outside the photon fence and a non-invading object are removed by filtering, so that non-background extraction on the invading object is realized.

The invention discloses a method, device and system for inquiring road conditions, relating to the field of application of a urban traffic information service, and the method, device and system can be used for efficiently and rapidly acquiring the road conditions of all roads around a position at which a terminal user is located at present. In a scheme provided by the embodiment of the invention, the method comprises the steps of: receiving a road condition inquiry request of the terminal user; according to GPS (Global Positioning System) coordinates and a radius, acquiring road condition information in a range with the GPS (Global Positioning System) coordinates as a center and the radius as a radius; and displaying the road condition information. The scheme provided by the embodiment of the invention is suitable for being adopted when the road conditions are inquired.

The invention relates to a buoy data information transfer device based on an unmanned ship system. The device is based on an unmanned ship system; the device includes an industrial control host internally provided with a WIFI module, and a camera shooting module, a radar module and a Beidou module which are externally connected with the industrial control host, and a circuit board provided with a motor module to control a propeller and a steering engine; the host also includes executing programs with the following steps: obtaining unmanned ship location information and a target task instruction through the Beidou module, planning a navigation trajectory, and issuing a straight-going control instruction to the circuit board; collecting image information of the camera shooting module, and identifying a buoy; opening the radar module to detect the obstacle condition of surrounding environment of the unmanned ship; determining the position of the buoy, and issuing a detouring control instruction to the circuit board; and opening the WIFI module to receive data information stored in the buoy and storing the data information to an external storage device. The buoy data information transfer device based on the unmanned ship system can obtain data information stored in the buoy at short range and navigates back to a shoreside base station to perform data uploading, thereby improving efficiency of an information acquisition process.

The invention relates to the field of data processing, and discloses an adaptive game playing algorithm based on deep reinforcement learning, comprising the following steps: (A) acquiring strategies for different cooperation levels; (B) generating strategies for different cooperation levels; (C) detecting the cooperation strategy of the opponent; and (D) developing different coping strategies. Theadaptive game playing algorithm based on deep reinforcement learning has the beneficial effects of using the trained detector and the strategy of different cooperation degrees to implement the existing ideas such as Tit for tat in the sequential social dilemmas; improving the scalability of the agent agent; and obtaining more intuitively better than its own competitive strategy.

The invention provides a digital home full-service intelligent terminal and application thereof in radio and TV network service. The digital home full-service intelligent terminal is characterized by consisting of equipment and service software which operates on the equipment, wherein the equipment is provided with a WiFi module, a radio and TV broadband access module and a digital broadcasting module. The digital home full-service intelligent terminal has the functions of supporting wireless network connection, performing video on demand based on the IPTV technology, performing communication in real time based on the VOIP technology, supporting a JAVA development environment, supporting multi-interface extension, and the like. The digital home full-service intelligent terminal is network equipment which has high integration level, low cost and high reliability and can provide multimedia full-service service.

The invention discloses a method for realizing a cognitive function of a wireless communication network system with the cognitive function, which is based on an invention patent application named as Wireless Communication Network System with Cognitive Function. The method substantially comprises the following steps of: obtaining cognitive flow; processing the cognitive flow and making a strategic decision; and executing the cognitive decision. When the method is applied to the prior communication network and the further communication network, an essential difference is the obtaining mode of cognitive information and the executing process of the cognitive decision. Based on the invention patent application named as Wireless Communication Network System with Cognitive Function, the invention can realize high cognitive competence for wireless environment, network environment and customer environment and autonomously decision control the wireless network with a set decision criteria based on the cognitive so as to lead the network to develop from a static working mode to a dynamic self-adapting working mode. The invention has a good application development prospect.

The invention discloses an onboard panorama monitoring system of an unmanned aerial vehicle. An aerial remote sensing image is transmitted to the ground in real time, and then the real-time panorama remote sensing image monitoring system is generated. The system is composed of the unmanned aerial vehicle, a remote sensor subsystem, an information transmission and ground safeguard subsystem and a panorama stitching treatment subsystem, wherein the unmanned aerial vehicle carries a remote sensor to acquire remote sensing information, an information transmission device in the information transmission and ground safeguard subsystem is used for transmitting the state of the unmanned aerial vehicle, the state of a pan-tilt, the state of the remote sensor and control signals and downloading images, a ground safeguard device in the information transmission and ground safeguard subsystem is used for transporting and storing system devices and providing comprehensive ground safeguard for the system devices, and the panorama stitching treatment subsystem is used for achieving automatic panorama stitching of downloaded image information and real-time monitoring. The system ensures that the monitoring device can be used by nonprofessional users conveniently, is easy to operate, can be applied to various industries, and has the advantages that deployment is convenient, maneuverability is high, and the real-time property of information is high.

The invention discloses a building fire situation assessment and personnel evacuating indication method and system. The building fire situation assessment and personnel evacuating indication method includes steps: monitoring fire information timely and calculating fire source position information, fire source intensity information and fire development situation information according to the fire information; estimating personnel position information in all areas in a building and personnel density distribution in all the areas; and calculating a best evacuating direction and a best evacuating path according to the fire source position information, the fire source intensity information, the fire development situation information, the personnel position information and the personnel density distribution information in all the areas in the building and the building structure information. By adopting the building fire situation assessment and personnel evacuating indication method and system, a practicable solution is provided for personnel evacuating based on disaster development situation in the building by sufficiently using the modern techniques such as sensing, communication, calculating and decision making, and decision making and evacuating efficiencies are improved.

The invention is suitable for the field of computers, and provides a computer polling method. The method comprises the following steps: acquiring the running state data information and identification information of terminal computers; comparing the acquired running state data information with preset standard running state data information, judging whether the acquired running state data information meets a preset requirement or not, if not, acquiring position information corresponding to the identification information of the terminal computers; displaying in a distinguishing manner in a terminal computer distribution chart according to the position information. By automatically acquiring the running state information of the terminal computers and comparing, data of the terminal computers can be acquired more immediately and effectively. By looking up the position information of the terminal computers through the identification information and displaying in a distinguishing manner in the terminal computer distribution chart, a target terminal computer can be located more efficiently by working personnel, and the locating efficiency is increased.

To provide a radio communication terminal which can effectively acquire a communication system as an in-cell return process which scans and detects a base station enabled for communication when a transmission operation is performed even if a radio communication terminal compatible with a plurality of communication methods is out of a cell, and which can try a connection with a base station by a communication method desired by a user. A control part (8) detects that a mobile telephone (100) is in an out-of-cell state and decides the scan order of a base station enabled for communication according to Nlist (a list created according to base stations in the neighborhood) which has been updated immediately before the mobile telephone (100) enters the out-of-cell state upon an in-cell reset process for returning to the in-cell state (wait state).

The invention discloses an active type specific information transmission monitoring method based on BitTorrent. Metainformation is read from a system by a metainformation collector; the metainformation obtained by the metainformation collector is analyzed; an analog data packet is actively sent to a fake client to obtain audience information; and through simulation of a DHT network accessing process, a Peers node list is extracted and processed. As the analog data packet is actively sent to the fake client to obtain the audience information, the audience information can be obtained as much as possible; and compared with the prior art, in the method, through the search and the obtaining of the metainformation of BitTorrent in the internet, the fake client obtains the audience information participating in the transmission of the specific information and forms a specific information transmission audience database so as to provide an audience information monitoring and evidence-obtaining means for a network security supervision department and provides basic data and decision-making basis for the macroanalysis and prewarning prediction of the network security situation.

The invention relates to the technical field of mobile computing, and provides a hot news sharing method based on geographical information, an apparatus and a system. The method comprises the following steps: the geographical information of users is obtained; positioning is carried out on the users; news events around the users are searched and pushed to the users; if news published by the users is received, the news is bound to the position of a publisher and is stored; and steps such as positioning are executed after timed updating of the geographical information of the users. In the technical scheme of the invention, through real time computing of the geographical information of the users, news publishing sites and the geographical positions of the users and/or focus of attention of the users are associated, and the hot news occurring around the users are shared to the users in real time. According to the technical scheme of the present invention, aiming at a characteristic that the mobile terminal users frequently change positions, events with high correlation degrees are timely and accurately pushed to the mobile terminal users, so that the mobile terminal users can still obtain the news in a rapid and highly efficient mode in cases that screens are relatively small, and the network access speed and flow are limited.

The invention discloses a file comparison method and device, computer equipment and a storage medium, and the method comprises the steps: obtaining a change file and a reference comparison file according to a change file identifier after obtaining a file change triggering request; converting the change file and the reference file into map data structures to obtain a to-be-compared file and a reference comparison file; and finally, carrying out recursive traversal on the to-be-compared file and the reference comparison file to obtain difference information. And after the corresponding comparison file is obtained, the comparison file is converted into a map data result for recursive traversal, so that high efficiency and accuracy of difference information obtaining are ensured, and file change is better prompted.

The invention discloses a method for collecting and optimizing a face image sample based on a heterogeneous active visual network, wherein the optimizing process is as follows: in every Delta t time, all cameras are performed target distribution and state regulation to finish one round of target image sample collection; the process of optimizing variables in sequence is as follows: according to distribution relationship between the camera and the target, position and facing angle of the camera in a world coordinate system, and focal distance of the camera, maximizing total experience evaluation function of all targets as the optimization target and traversing target distribution plans; under each target distribution plan, adopting the genetic algorithm, solving optimization variables to enable the target evaluation function to be the maximum; selecting the best distribution plan so as to obtain the maximum total experience evaluation function. The method improves the resolution ratio and the attitude angle of the face in the image by the active visual technology, optimizes the sample collection process by the heterogeneous active visual network, obtains face image sample with good resolution ratio and rich attitude angles in order to register and identify face.